package com.sky.aop;

import com.sky.annotation.AutoFill;
import com.sky.context.BaseContext;
import com.sky.enumeration.OperationType;
import lombok.extern.slf4j.Slf4j;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.Signature;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.annotation.Pointcut;
import org.aspectj.lang.reflect.MethodSignature;
import org.springframework.stereotype.Component;

import java.lang.reflect.Method;
import java.time.LocalDateTime;

@Component
@Aspect
@Slf4j
public class AutoFillAspect {
    @Pointcut("execution(* com.sky.mapper.*.*(..))&&@annotation(com.sky.annotation.AutoFill)")
    public void auToFillPointcut() {
    }
    @Before("auToFillPointcut()")
    public void autoFill(JoinPoint joinPoint) {
        MethodSignature signature = (MethodSignature) joinPoint.getSignature();
        AutoFill autoFill = signature.getMethod().getAnnotation(AutoFill.class);
        OperationType value = autoFill.value();
        Object[] args = joinPoint.getArgs();
        if (args == null || args.length == 0) {
            return;
        }
        Object arg = args[0];
        LocalDateTime now = LocalDateTime.now();
        Long currentId = BaseContext.getCurrentId();
        if (value == OperationType.INSERT) {
            try{
                Method setCreateTime = arg.getClass().getDeclaredMethod("setCreateTime", LocalDateTime.class);
                Method setCreateUser = arg.getClass().getDeclaredMethod("setCreateUser", Long.class);
                Method setUpdateTime = arg.getClass().getDeclaredMethod("setUpdateTime", LocalDateTime.class);
                Method setUpdateUser = arg.getClass().getDeclaredMethod("setUpdateUser", Long.class);
                setCreateTime.invoke(arg,now);
                setCreateUser.invoke(arg,currentId);
                setUpdateTime.invoke(arg,now);
                setUpdateUser.invoke(arg,currentId);
            }catch (Exception e){
                e.printStackTrace();
            }
        }else if (value == OperationType.UPDATE) {
            try{
                Method setUpdateTime = arg.getClass().getDeclaredMethod("setUpdateTime", LocalDateTime.class);
                Method setUpdateUser = arg.getClass().getDeclaredMethod("setUpdateUser", Long.class);
                setUpdateTime.invoke(arg,now);
                setUpdateUser.invoke(arg,currentId);
            }catch (Exception e){
                e.printStackTrace();
            }
        }


    }
}
